What is the equivalent output of a circuit in dBm, if it is has an output of 10 watts? A. 10 dBm B. 30 dBm C. 20 dBm D. 40 dBm

What is the equivalent output of a circuit in dBm, if it is has an output of 10 watts?
A. 10 dBm
B. 30 dBm
C. 20 dBm
D. 40 dBm
by

1 Answer

Answer :

D. 40 dBm
by

Related questions

A reading of -50 dBm on the disturbing pair, and -80 on the disturbed pair equals _____ dB of crosstalk coupling. A. 20 B. 30 C. 60 D. 25

Description : A reading of -50 dBm on the disturbing pair, and -80 on the disturbed pair equals _____ dB of crosstalk coupling. A. 20 B. 30 C. 60 D. 25

Last Answer : B. 30

What is the noise factor if the equivalent noise temperature is 25 K? A. 1.09 B. 0.09 C. 0.36 dBm D. 0.36

Description : What is the noise factor if the equivalent noise temperature is 25 K? A. 1.09 B. 0.09 C. 0.36 dBm D. 0.36

Last Answer : A. 1.09

What would be the power consumed in the combined parallel section of the circuit shown in the illustration if the source were 30 volts and the resistance for R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Description : What would be the power consumed in the combined parallel section of the circuit shown in the illustration if the source were 30 volts and the resistance for R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Last Answer : Answer: C

What power would be consumed by the series resistor of the circuit shown in the illustration if the source is 30 volts, the resistance of R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Description : What power would be consumed by the series resistor of the circuit shown in the illustration if the source is 30 volts, the resistance of R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Last Answer : Answer: D

What power would be consumed in EACH of the branch resistors of the circuit shown in the illustration if the source is 30 volts, the resistance for R1 is 10 ohms, R2 is 10 ohms and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Description : What power would be consumed in EACH of the branch resistors of the circuit shown in the illustration if the source is 30 volts, the resistance for R1 is 10 ohms, R2 is 10 ohms and R3 is 10 ohms? EL-0032 A. 5 watts B. 10 watts C. 20 watts D. 40 watts

Last Answer : Answer: B

Determine the effective radiated power of 20 kW TV broadcast transmitter whose antenna has a field gain of 2. A. 40 kW B. 80,000 watts C. 40,000 watts D. 8,000 watts

Description : Determine the effective radiated power of 20 kW TV broadcast transmitter whose antenna has a field gain of 2. A. 40 kW B. 80,000 watts C. 40,000 watts D. 8,000 watts

Last Answer : B. 80,000 watts

ECE Board Exam March 1996 Crosstalk coupling is ___________. A. dBm (disturbing pair) minus dBm (disturbed pair) B. the difference between readings on a cable pair with a tone and a cable pair without tone read at the far end of a cable C. signals from one circuit that get into another circuit D. All of these are true

Description : ECE Board Exam March 1996 Crosstalk coupling is ___________. A. dBm (disturbing pair) minus dBm (disturbed pair) B. the difference between readings on a cable pair with a tone and a cable pair without ... a cable C. signals from one circuit that get into another circuit D. All of these are true

Last Answer : D. All of these are true

Your Western Electric 3A test set meter reading is -23 dBm at at test point level of -8 dB. This is ______ dBrnc0. A. 75 B. 29 C. 30 D. 31

Description : Your Western Electric 3A test set meter reading is -23 dBm at at test point level of -8 dB. This is ______ dBrnc0. A. 75 B. 29 C. 30 D. 31

Last Answer : A. 75

What is the effective radiated power of a repeater with 200 watts transmitter power output, 4 dB feline loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain? A. 317 W B. 2000 W C. 126 W D. 260 W

Description : What is the effective radiated power of a repeater with 200 watts transmitter power output, 4 dB feline loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain? A. 317 W B. 2000 W C. 126 W D. 260 W

Last Answer : A. 317 W

What is the effective radiated power of a repeater with 100 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain? A. 800 W B. 126 W C. 12.5 W D. 1260 W

Description : What is the effective radiated power of a repeater with 100 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 10 dB antenna gain? A. 800 W B. 126 W C. 12.5 W D. 1260 W

Last Answer : B. 126 W

What is the effective radiated power of a repeater with 75 watts transmitter power output, 4 dB feedline loss, 3 dB duplexer and circulator loss, and 10 dB antenna gain? A. 600 W B. 75 W C. 18.75 W D. 150 W

Description : What is the effective radiated power of a repeater with 75 watts transmitter power output, 4 dB feedline loss, 3 dB duplexer and circulator loss, and 10 dB antenna gain? A. 600 W B. 75 W C. 18.75 W D. 150 W

Last Answer : D. 150 W

You are measuring noise in a voice channel at 7 dB test point level. The meter reads -56 dBm (FIA weighted). What is the reading in dBrnc? A. 20 B. 32 C. 35 D. 25

Description : You are measuring noise in a voice channel at 7 dB test point level. The meter reads -56 dBm (FIA weighted). What is the reading in dBrnc? A. 20 B. 32 C. 35 D. 25

Last Answer : C. 35

What would be the total power consumed in the circuit shown in the illustration if the source is 30 volts the resistance for R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 10 watts B. 40 watts C. 45 watts D. 60 watts

Description : What would be the total power consumed in the circuit shown in the illustration if the source is 30 volts the resistance for R1 is 10 ohms, R2 is 10 ohms, and R3 is 10 ohms? EL-0032 A. 10 watts B. 40 watts C. 45 watts D. 60 watts

Last Answer : Answer: D

What is the effective radiated power of a repeater with 120 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 6 dB antenna gain? A. 601 W B. 240 W C. 60 W D. 379 W

Description : What is the effective radiated power of a repeater with 120 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 6 dB antenna gain? A. 601 W B. 240 W C. 60 W D. 379 W

Last Answer : C. 60 W

What is the effective radiated power of a repeater with 75 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 6 dB antenna gain? A. 37.6 W B. 237 W C. 150 W D. 23.7 W

Description : What is the effective radiated power of a repeater with 75 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 6 dB antenna gain? A. 37.6 W B. 237 W C. 150 W D. 23.7 W

Last Answer : A. 37.6 W

What is the effective radiated power of a repeater with 50 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 7 dB antenna gain? A. 300 W B. 315 W C. 31.5 W D. 69.9 W

Description : What is the effective radiated power of a repeater with 50 watts transmitter power output, 5 dB feedline loss, 4 dB duplexer and circulator loss, and 7 dB antenna gain? A. 300 W B. 315 W C. 31.5 W D. 69.9 W

Last Answer : C. 31.5 W

What is the effective radiated power of a repeater with 50 watts transmitter power output \, 4 dB feedline loss, 3 dB duplexer and circulator loss, and 6 dB antenna gain? A. 158 W B. 39.7 W C. 251 W D. 69.9 W

Description : What is the effective radiated power of a repeater with 50 watts transmitter power output \, 4 dB feedline loss, 3 dB duplexer and circulator loss, and 6 dB antenna gain? A. 158 W B. 39.7 W C. 251 W D. 69.9 W

Last Answer : B. 39.7 W

A coaxial cable has 7dB of reflected power when the input is 5 watts. What is the output of the transmission line? A. 5 watts B. 2.5 watts C. 1.25 watts D. 1 watt

Description : A coaxial cable has 7dB of reflected power when the input is 5 watts. What is the output of the transmission line? A. 5 watts B. 2.5 watts C. 1.25 watts D. 1 watt

Last Answer : D. 1 watt

What is the reference noise level? A. 10 pW B. 0 dBm C. 1mW D. -90 dBm

Description : What is the reference noise level? A. 10 pW B. 0 dBm C. 1mW D. -90 dBm

Last Answer : D. -90 dBm

The standard test tone A. 0dB B. 10 dBm C. 0 dBm D. 10 dB

Description : The standard test tone A. 0dB B. 10 dBm C. 0 dBm D. 10 dB

Last Answer : C. 0 dBm

What is the front-to-back ratio of an antenna which radiates 500 watts in a northernly direction and 50 watts in a southernly direction? A. 25000 dB B. 10 dB C. 100 dB D. 20 dB

Description : What is the front-to-back ratio of an antenna which radiates 500 watts in a northernly direction and 50 watts in a southernly direction? A. 25000 dB B. 10 dB C. 100 dB D. 20 dB

Last Answer : B. 10 dB

What is the reference tone level for dBa? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Description : What is the reference tone level for dBa? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Last Answer : D. -85 dBm

What is the reference tone level for dBrn? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Description : What is the reference tone level for dBrn? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Last Answer : A. -90 dBm

What is the reference level for noise measurement, F1A weighted? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Description : What is the reference level for noise measurement, F1A weighted? A. -90 dBm B. -82 dBm C. -67 dBm D. -85 dBm

Last Answer : D. -85 dBm

Reference noise is ___________. A. a 1000 Hz, -90 dBm tone B. a noise that creates the same interfering effect as a 1000Hz, -90dBm tone C. a noise that creates zero dBrn in a voice channel D. B and C above

Description : Reference noise is ___________. A. a 1000 Hz, -90 dBm tone B. a noise that creates the same interfering effect as a 1000Hz, -90dBm tone C. a noise that creates zero dBrn in a voice channel D. B and C above

Last Answer : D. B and C above

At what power level does a 1 KHz tone cause zero interference (144 weighted)? A. 90 dB B. 90 dBm C. -90 dBm D. -90 dBm

Description : At what power level does a 1 KHz tone cause zero interference (144 weighted)? A. 90 dB B. 90 dBm C. -90 dBm D. -90 dBm

Last Answer : D. -90 dBm

A measurement of -75 dBm, C-message weighted, would be _________ dBrnc. A. 8 B. 7 C. 9 D. 15

Description : A measurement of -75 dBm, C-message weighted, would be _________ dBrnc. A. 8 B. 7 C. 9 D. 15

Last Answer : D. 15

You are measuring noise at a -6 dB level point, using the Lenkurt 601A, F1A weighting network, and a flat meter. The meter reading is -59 dBm. This is _________ dBa0. A. 24 B. 12 C. 23 D. 32

Description : You are measuring noise at a -6 dB level point, using the Lenkurt 601A, F1A weighting network, and a flat meter. The meter reading is -59 dBm. This is _________ dBa0. A. 24 B. 12 C. 23 D. 32

Last Answer : D. 32

15 dBa F1A weighted, equals ___________. A. -90 dBm B. -82 dBm C. -85 dBm D. -70 dBm

Description : 15 dBa F1A weighted, equals ___________. A. -90 dBm B. -82 dBm C. -85 dBm D. -70 dBm

Last Answer : D. -70 dBm

F1A weighting refers to ___________. A. -90 dBm B. dBrnc0 C. dBrnc D. F1A handset

Description : F1A weighting refers to ___________. A. -90 dBm B. dBrnc0 C. dBrnc D. F1A handset

Last Answer : C. dBrnc

Interfering effect of noise, C message weighted, is _________. A. dBa B. dBm C. dBmc D. dB

Description : Interfering effect of noise, C message weighted, is _________. A. dBa B. dBm C. dBmc D. dB

Last Answer : C. dBmc

The difference between signal strength at a given point and a reference level is________. A. power B. dBm C. level D. ratio

Description : The difference between signal strength at a given point and a reference level is________. A. power B. dBm C. level D. ratio

Last Answer : C. level

What is the unit of noise power of psophometer? A. pWp B. dBa C. dBm D. dBrn

Description : What is the unit of noise power of psophometer? A. pWp B. dBa C. dBm D. dBrn

Last Answer : A. pWp

The most common unit of noise measurement in white noise voltage testing. A. NPR B. dBm C. dBW D. dBrn

Description : The most common unit of noise measurement in white noise voltage testing. A. NPR B. dBm C. dBW D. dBrn

Last Answer : A. NPR

Unit of noise power of psophometer A. dBa B. pWp C. dBm D. dBmO

Description : Unit of noise power of psophometer A. dBa B. pWp C. dBm D. dBmO

Last Answer : B. pWp

The most common unit of noise measurement in white noise testing. A. dBw B. dBk C. dBm D. NPR

Description : The most common unit of noise measurement in white noise testing. A. dBw B. dBk C. dBm D. NPR

Last Answer : D. NPR

You are measuring a voice channel at a -4 dB test point level, the meter reads -73 dBm (pure test tone) convert the reading in dBmCO. A. 16 B. 18 C. 22 D. 12

Description : You are measuring a voice channel at a -4 dB test point level, the meter reads -73 dBm (pure test tone) convert the reading in dBmCO. A. 16 B. 18 C. 22 D. 12

Last Answer : C. 22

Noise reduction system used for film sound in movie A. dBx B. dolby C. dBa D. dBm

Description : Noise reduction system used for film sound in movie A. dBx B. dolby C. dBa D. dBm

Last Answer : B. dolby

Which stands for dB relative level? A. dBrn B. dBm C. dBr D. dBa

Description : Which stands for dB relative level? A. dBrn B. dBm C. dBr D. dBa

Last Answer : C. dBr

In measuring noise in a voice channel at a 4 dB test point level, the meter reads -70 dBm (F1A weighted), convert the reading to pWp. A. 53 B. 93 C. 63 D. 83

Description : In measuring noise in a voice channel at a 4 dB test point level, the meter reads -70 dBm (F1A weighted), convert the reading to pWp. A. 53 B. 93 C. 63 D. 83

Last Answer : B. 93

ECE Board Exam March 1996 What is the reference tone level for dBm? A. -82 dBm B. -85 dBm C. -67 dBm D. -90 dBm

Description : ECE Board Exam March 1996 What is the reference tone level for dBm? A. -82 dBm B. -85 dBm C. -67 dBm D. -90 dBm

Last Answer : D. -90 dBm

ECE Board Exam March 1996 At what power level does a 1 kHz tone cause zero interference (144 weighted) ? A. -90 dB B. -90 dBm C. 90 dBm D. 90 dB

Description : ECE Board Exam March 1996 At what power level does a 1 kHz tone cause zero interference (144 weighted) ? A. -90 dB B. -90 dBm C. 90 dBm D. 90 dB

Last Answer : B. -90 dBm

Lightning rods must be mounted a top structure not less than ___ above the highest point. A. 10 cm B. 20 cm C. 30 cm D. 40 cm

Description : Lightning rods must be mounted a top structure not less than ___ above the highest point. A. 10 cm B. 20 cm C. 30 cm D. 40 cm

Last Answer : C. 30 cm

What signal-to-noise ratio is required for satisfactory television reception? A. 10 dB B. 30 dB C. 40 dB D. 20 dB

Description : What signal-to-noise ratio is required for satisfactory television reception? A. 10 dB B. 30 dB C. 40 dB D. 20 dB

Last Answer : C. 40 dB

In the American standard, the aural transmitter maximum radiated power is _____ of peak visual transmitter power. A. 10 % B. 30 % C. 20 % D. 40 %

Description : In the American standard, the aural transmitter maximum radiated power is _____ of peak visual transmitter power. A. 10 % B. 30 % C. 20 % D. 40 %

Last Answer : C. 20 %

The signal to noise ratio that is required for a satisfactory television reception. A. 30 dB B. 40 dB C. 10 dB D. 20 dB

Description : The signal to noise ratio that is required for a satisfactory television reception. A. 30 dB B. 40 dB C. 10 dB D. 20 dB

Last Answer : B. 40 dB

For a sample rate of 40 kHz, determine the maximum analog input frequency A. 30 kHz B. 40 kHz C. 20 kHz D. 10 kHz

Description : For a sample rate of 40 kHz, determine the maximum analog input frequency A. 30 kHz B. 40 kHz C. 20 kHz D. 10 kHz

Last Answer : C. 20 kHz

Ethernet is baseband system using CSMA/CD operating at A. 20 Mbps B. 10 Mbps C. 30 Mbps D. 40 Mbps

Description : Ethernet is baseband system using CSMA/CD operating at A. 20 Mbps B. 10 Mbps C. 30 Mbps D. 40 Mbps

Last Answer : B. 10 Mbps

The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, respectively. Calculate the equivalent input-noise resistance of this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

Description : The first stage of a two-stage amplifier has a voltage gain of 10, a 600 Ω input resistor, a 1600Ω equivalent noise resistance and 27kΩ output resistor. For the second stage, these values are 25, 81kΩ, 19kΩ, and 1MΩ, ... this two stage amplifier. A. 2,518 kΩ B. 2,518 Ω C. 251.8 Ω D. 12,518 Ω

Last Answer : B. 2,518 Ω

The range of speech power is ____. A. 1 – 10 watts B. 100 – 1000 milliwatts C. 10 – 100 milliwatts D. 10 – 1000 microwatts

Description : The range of speech power is ____. A. 1 – 10 watts B. 100 – 1000 milliwatts C. 10 – 100 milliwatts D. 10 – 1000 microwatts

Last Answer : 10 – 1000 microwatts